VacAir supplies high-quality replacement Busch oil separators for a wide range of Busch oil lubricated rotary vane vacuum pumps. Busch OEM oil mist separators are also available. Whether you are carrying out routine servicing or replacing a saturated separator causing oil misting or excessive oil consumption, we can help you identify the correct replacement quickly.
Most customers search using their Busch pump model number rather than the oil separator part number. Simply use the product finder further down this page to locate the correct oil separator for your pump. If you are unsure, our experienced team can identify the correct separator from your pump model or serial number.
We supply customers throughout the UK and worldwide, with many popular Busch oil separator elements available from stock for immediate despatch.

We stock oil separators for a wide range of Busch vacuum pumps including the popular Busch R5 RA 0025 F, RA 0040 F, RA 0063 F, RA 0100 F, RA 0165 D, RA 0205 D, RA 0255 D, RA 0305 D, RA 0400 B, RA 0630 B, RA 1000 B and RA 1600 B models.
The model list below is designed to help you quickly find the correct oil separator for your Busch pump. If your model is not shown, we may still be able to help.
The oil separator is an important service item inside a Busch oil lubricated vacuum pump. It separates oil mist from the exhaust air and helps retain oil inside the pump. A worn or blocked and saturated separator can cause oil smoke from the exhaust, higher oil consumption, reduced vacuum performance and unnecessary strain on the pump.
VacAir supplies Busch vacuum pump spares, service kits, oil separators, vacuum pump oil and replacement parts to customers throughout the UK and overseas.
We are not just an online parts seller. Our team works with vacuum pumps every day, supplying parts, carrying out repairs and helping customers identify the correct components for their pumps. We are Busch pump experts.
If you are unsure which Busch oil separator you need, contact us before ordering and we will help you identify the correct part.




We supply Busch oil separators to customers throughout the UK and around the world. Many of our most popular oil separator elements are available from stock for immediate despatch, helping minimise costly vacuum pump downtime.
Whether you require a single replacement oil separator or multiple elements for planned maintenance, our team can recommend the correct parts and arrange fast delivery. We regularly supply Busch spare parts, service and pumps to manufacturers, food processors, packaging companies, printers, woodworking businesses and engineering companies throughout the UK, Europe and worldwide.
If your pump is urgently required back in service, contact our team and we will always try to offer the quickest delivery option available.
Select your Busch vacuum pump model below to view the correct oil separator. Many customers search for oil separators using terms such as Busch RA 0063 F oil separator, Busch RA 0100 F separator, Busch RA 0255 D oil separator or Busch RA 0630 B oil separator, or simply search 0100, 0025, 0063.